drivers: introduce Secure Monitor uclass
At the moment, we don't have a common API for working with
SM, only the smc_call() function. This approach is not generic
and difficult to configure and maintain.
This patch adds UCLASS_SM with the generic API:
- sm_call()
- sm_call_write()
- sm_call_read()
These functions operate with struct pt_regs, which describes
Secure Monitor arguments.
Signed-off-by: Alexey Romanov <avromanov@salutedevices.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20230921081346.22157-2-avromanov@salutedevices.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
diff --git a/drivers/Makefile b/drivers/Makefile
index efc2a4a..74f940a 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -35,6 +35,7 @@
obj-$(CONFIG_$(SPL_)DM_MAILBOX) += mailbox/
obj-$(CONFIG_$(SPL_)REMOTEPROC) += remoteproc/
obj-$(CONFIG_$(SPL_)SYSINFO) += sysinfo/
+obj-$(CONFIG_$(SPL_TPL_)SM) += sm/
obj-$(CONFIG_$(SPL_TPL_)TPM) += tpm/
obj-$(CONFIG_$(SPL_)NVME) += nvme/
obj-$(CONFIG_XEN) += xen/